Dyfyniad APA

American Society for Testing and Materials & ASTM International. (2007). Standard specification for Copper Trolley Wire. American Society of Testing Materials.

Dyfyniad Arddull Chicago

American Society for Testing and Materials and ASTM International. Standard Specification for Copper Trolley Wire. [Western Conshohocken, Pennsylvania]: American Society of Testing Materials, 2007.

Dyfyniad MLA

American Society for Testing and Materials and ASTM International. Standard Specification for Copper Trolley Wire. American Society of Testing Materials, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.